[PATCH][wwwdocs] Update OpenMP Implementation Status for GCC 16

[Tobias Burnus]

Gio T wrote:
> Subject: [PATCH] wwwdocs: Update OpenMP Implementation Status
>
> projects/gomp: Update OpenMP implementation status for GCC 16.
...
>     <tr>
> -    <td>C/C++'s <code>declare variant</code> directive: elision support of preprocessed code</td>
> -    <td class="unsupported">No</td>
> +    <td>C/C++'s delimited <code>declare variant</code> directive: support elision of preprocessed code and interpret enclosed function definitions</td>
> +    <td class="supported"><a href="../../gcc-16/changes.html#openmp">GCC 16</a></td>

I didn't understand the description and now see that's because the last 
three words are missing compared to 
https://gcc.gnu.org/onlinedocs/libgomp/OpenMP-5_002e1.html

"C/C++’s delimited |declare variant| directive: support elision of 
preprocessed code and interpret enclosed function definitions as variant 
functions"

Please add.

Otherwise: LGTM.

Thanks for the patch!

Tobias